Magic_Game/src/kiwano/2d/action/ActionTween.h

// Copyright (c) 2016-2018 Kiwano - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#pragma once
#include "Action.h"
#include "../../base/logs.h"
#include "../../renderer/render.h"  // ID2D1PathGeometry, ID2D1GeometrySink

namespace kiwano
{
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	using EaseFunc = Closure<float(float)>;

	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6>
	// See https://easings.net for more information
	struct Ease
	{
		static KGE_API EaseFunc Linear;			// <20><><EFBFBD><EFBFBD>
		static KGE_API EaseFunc EaseIn;			// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		static KGE_API EaseFunc EaseOut;		// <20>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD>
		static KGE_API EaseFunc EaseInOut;		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD>
		static KGE_API EaseFunc ExpoIn;			// <20><><EFBFBD><EFBFBD><EFBFBD>伫<EFBFBD><E4BCAB>
		static KGE_API EaseFunc ExpoOut;		// <20>ɼ<EFBFBD><C9BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		static KGE_API EaseFunc ExpoInOut;		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD>ɼ<EFBFBD><C9BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		static KGE_API EaseFunc ElasticIn;		// <20><><EFBFBD><EFBFBD><EFBFBD>㸳<EFBFBD>赯<EFBFBD><E8B5AF>
		static KGE_API EaseFunc ElasticOut;		// <20><><EFBFBD>յ㸳<D5B5>赯<EFBFBD><E8B5AF>
		static KGE_API EaseFunc ElasticInOut;	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ㸳<D5B5>赯<EFBFBD><E8B5AF>
		static KGE_API EaseFunc BounceIn;		// <20><><EFBFBD><EFBFBD><EFBFBD>㸳<EFBFBD>跴<EFBFBD><E8B7B4><EFBFBD><EFBFBD>
		static KGE_API EaseFunc BounceOut;		// <20><><EFBFBD>յ㸳<D5B5>跴<EFBFBD><E8B7B4><EFBFBD><EFBFBD>
		static KGE_API EaseFunc BounceInOut;	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ㸳<D5B5>跴<EFBFBD><E8B7B4><EFBFBD><EFBFBD>
		static KGE_API EaseFunc BackIn;
		static KGE_API EaseFunc BackOut;
		static KGE_API EaseFunc BackInOut;
		static KGE_API EaseFunc QuadIn;
		static KGE_API EaseFunc QuadOut;
		static KGE_API EaseFunc QuadInOut;
		static KGE_API EaseFunc CubicIn;
		static KGE_API EaseFunc CubicOut;
		static KGE_API EaseFunc CubicInOut;
		static KGE_API EaseFunc QuartIn;
		static KGE_API EaseFunc QuartOut;
		static KGE_API EaseFunc QuartInOut;
		static KGE_API EaseFunc QuintIn;
		static KGE_API EaseFunc QuintOut;
		static KGE_API EaseFunc QuintInOut;
		static KGE_API EaseFunc SineIn;
		static KGE_API EaseFunc SineOut;
		static KGE_API EaseFunc SineInOut;
	};


	// <20><><EFBFBD>䶯<EFBFBD><E4B6AF>
	class KGE_API ActionTween
		: public Action
	{
	public:
		ActionTween();

		ActionTween(
			Duration duration,
			EaseFunc func
		);

		// <20>Զ<EFBFBD><D4B6>建<EFBFBD><E5BBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		void SetEaseFunc(
			EaseFunc const& func
		);

		EaseFunc const& GetEaseFunc() const;

		Duration GetDuration() const;

		void SetDuration(Duration duration);

	protected:
		void Update(ActorPtr target, Duration dt) override;

		virtual void UpdateTween(ActorPtr target, float percent) = 0;

	protected:
		Duration dur_;
		EaseFunc ease_func_;
	};


	// <20><><EFBFBD><EFBFBD>λ<EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD>
	class KGE_API ActionMoveBy
		: public ActionTween
	{
	public:
		ActionMoveBy(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			Point const& vector,	/* <20>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override;

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		Point	start_pos_;
		Point	prev_pos_;
		Point	delta_pos_;
	};


	// λ<>ƶ<EFBFBD><C6B6><EFBFBD>
	class KGE_API ActionMoveTo
		: public ActionMoveBy
	{
	public:
		ActionMoveTo(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			Point const& pos,		/* Ŀ<><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		virtual ActionPtr Reverse() const override
		{
			KGE_ERROR_LOG(L"Reverse() not supported in ActionMoveTo");
			return nullptr;
		}

	protected:
		void Init(ActorPtr target) override;

	protected:
		Point end_pos_;
	};


	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ծ<EFBFBD><D4BE><EFBFBD><EFBFBD>
	class KGE_API ActionJumpBy
		: public ActionTween
	{
	public:
		ActionJumpBy(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			Point const& vec,		/* <20><>Ծ<EFBFBD><D4BE><EFBFBD><EFBFBD> */
			float height,			/* <20><>Ծ<EFBFBD>߶<EFBFBD> */
			int jumps = 1,			/* <20><>Ծ<EFBFBD><D4BE><EFBFBD><EFBFBD> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override;

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		Point	start_pos_;
		Point	delta_pos_;
		float	height_;
		int		jumps_;
		Point	prev_pos_;
	};


	// <20><>Ծ<EFBFBD><D4BE><EFBFBD><EFBFBD>
	class KGE_API ActionJumpTo
		: public ActionJumpBy
	{
	public:
		ActionJumpTo(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			Point const& pos,		/* Ŀ<><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
			float height,			/* <20><>Ծ<EFBFBD>߶<EFBFBD> */
			int jumps = 1,			/* <20><>Ծ<EFBFBD><D4BE><EFBFBD><EFBFBD> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		virtual ActionPtr Reverse() const override
		{
			KGE_ERROR_LOG(L"Reverse() not supported in ActionJumpTo");
			return nullptr;
		}

	protected:
		void Init(ActorPtr target) override;

	protected:
		Point end_pos_;
	};


	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŷ<EFBFBD><C5B6><EFBFBD>
	class KGE_API ActionScaleBy
		: public ActionTween
	{
	public:
		ActionScaleBy(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float scale,			/* <20><><EFBFBD>Ա仯ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		ActionScaleBy(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float scale_x,			/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա仯ֵ */
			float scale_y,			/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա仯ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override;

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		float	start_scale_x_;
		float	start_scale_y_;
		float	delta_x_;
		float	delta_y_;
	};


	// <20><><EFBFBD>Ŷ<EFBFBD><C5B6><EFBFBD>
	class KGE_API ActionScaleTo
		: public ActionScaleBy
	{
	public:
		ActionScaleTo(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float scale,			/* Ŀ<><C4BF>ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		ActionScaleTo(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float scale_x,			/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>ֵ */
			float scale_y,			/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		virtual ActionPtr Reverse() const override
		{
			KGE_ERROR_LOG(L"Reverse() not supported in ActionScaleTo");
			return nullptr;
		}

	protected:
		void Init(ActorPtr target) override;

	protected:
		float	end_scale_x_;
		float	end_scale_y_;
	};


	// ͸<><CDB8><EFBFBD>Ƚ<EFBFBD><C8BD>䶯<EFBFBD><E4B6AF>
	class KGE_API ActionFadeTo
		: public ActionTween
	{
	public:
		ActionFadeTo(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float opacity,			/* Ŀ<><C4BF>ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		virtual ActionPtr Reverse() const override
		{
			KGE_ERROR_LOG(L"Reverse() not supported in ActionFadeTo");
			return nullptr;
		}

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		float start_val_;
		float delta_val_;
		float end_val_;
	};


	// <20><><EFBFBD>붯<EFBFBD><EBB6AF>
	class KGE_API ActionFadeIn
		: public ActionFadeTo
	{
	public:
		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>붯<EFBFBD><EBB6AF>
		explicit ActionFadeIn(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);
	};


	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	class KGE_API ActionFadeOut
		: public ActionFadeTo
	{
	public:
		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		explicit ActionFadeOut(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);
	};


	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
	class KGE_API ActionRotateBy
		: public ActionTween
	{
	public:
		ActionRotateBy(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float rotation,			/* <20><><EFBFBD>Ա仯ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override;

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		float start_val_;
		float delta_val_;
	};


	// <20><>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
	class KGE_API ActionRotateTo
		: public ActionRotateBy
	{
	public:
		ActionRotateTo(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			float rotation,			/* Ŀ<><C4BF>ֵ */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		virtual ActionPtr Reverse() const override
		{
			KGE_ERROR_LOG(L"Reverse() not supported in ActionRotateTo");
			return nullptr;
		}

	protected:
		void Init(ActorPtr target) override;

	protected:
		float end_val_;
	};


	// ·<><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	class KGE_API ActionPath
		: public ActionTween
	{
	public:
		ActionPath(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			bool rotating = false,	/* <20><>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>߷<EFBFBD><DFB7><EFBFBD><EFBFBD><EFBFBD>ת */
			float start = 0.f,		/* <20><><EFBFBD><EFBFBD> */
			float end = 1.f,		/* <20>յ<EFBFBD> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override;

		// <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		void BeginPath();

		// <20><><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		void EndPath(
			bool closed = false		/* ·<><C2B7><EFBFBD>Ƿ<EFBFBD><C7B7>պ<EFBFBD> */
		);

		// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>߶<EFBFBD>
		void AddLine(
			Point const& point		/* <20>˵<EFBFBD> */
		);

		// <20><><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD>߶<EFBFBD>
		void AddLines(
			Array<Point> const& points
		);

		// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		void AddBezier(
			Point const& point1,	/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĵ<DFB5>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD> */
			Point const& point2,	/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĵڶ<C4B5><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD> */
			Point const& point3		/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD><DFB5>յ<EFBFBD> */
		);

		// <20><><EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD>
		void AddArc(
			Point const& point,		/* <20>յ<EFBFBD> */
			Size const& radius,		/* <20><>Բ<EFBFBD>뾶 */
			float rotation,			/* <20><>Բ<EFBFBD><D4B2>ת<EFBFBD>Ƕ<EFBFBD> */
			bool clockwise = true,	/* ˳ʱ<CBB3><CAB1> or <20><>ʱ<EFBFBD><CAB1> */
			bool is_small = true	/* <20>Ƿ<EFBFBD>ȡС<C8A1><D0A1> 180<38><30> <20>Ļ<EFBFBD> */
		);

		// <20><><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		void ClearPath();

		// <20><>ȡ·<C8A1><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		float GetPathLength() const;

		// <20><><EFBFBD>㵱ǰ·<C7B0><C2B7><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		bool ComputePointAtLength(float length, Point* point, Vec2* tangent) const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		inline ComPtr<ID2D1PathGeometry> GetGeometry() const	{ return geo_; }

		// <20><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>·<EFBFBD><C2B7>
		inline void SetGeometry(ComPtr<ID2D1PathGeometry> geo)	{ geo_ = geo; }

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		bool	path_beginning_;
		bool	rotating_;
		float	start_;
		float	end_;
		Point	start_pos_;

		ComPtr<ID2D1PathGeometry> geo_;
		ComPtr<ID2D1GeometrySink> geo_sink_;
	};


	// <20>Զ<EFBFBD><D4B6>嶯<EFBFBD><E5B6AF>
	class KGE_API ActionCustom
		: public ActionTween
	{
	public:
		using TweenFunc = Closure<void(ActorPtr, float)>;

		ActionCustom(
			Duration duration,		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
			TweenFunc tween_func,	/* <20><><EFBFBD>̺<EFBFBD><CCBA><EFBFBD> */
			EaseFunc func = nullptr	/* <20>ٶȱ仯 */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override
		{
			KGE_ERROR_LOG(L"Reverse() not supported in ActionCustom");
			return nullptr;
		}

	protected:
		void Init(ActorPtr target) override;

		void UpdateTween(ActorPtr target, float percent) override;

	protected:
		TweenFunc tween_func_;
	};


	// <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
	class KGE_API ActionDelay
		: public Action
	{
	public:
		ActionDelay(
			Duration delay		/* <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
		);

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		ActionPtr Clone() const override;

		// <20><>ȡ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ĵ<EFBFBD>ת
		ActionPtr Reverse() const override;
	};
}